生物学杂志

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延安市城区斑块化湿地秋季主要昆虫种间联结分析

  

  1. 延安大学 生命科学学院, 延安 716000
  • 出版日期:2018-12-18 发布日期:2018-12-18
  • 通讯作者: 徐世才,副教授,硕士生导师,主要从事昆虫生态与综合防治方面研究, E-mail: shicaixu@163.com
  • 基金资助:
    国家自然科学基金项目(31370541);陕西省高水平大学建设专项资金项目“生态学”(2012SXTS03);延安大学引导项目(YD2015-11);延安大学研究生创新项目(YCX201703)

Interspecific association of the major insect species in patchiness wetlands of Yan′an during autumn

  1. College of Life Sciences, Yan′an University, Yan′an 716000, China
  • Online:2018-12-18 Published:2018-12-18

摘要: 为探究延河区域秋季揺蚊大量孳生的原因,基于2×2列联表,运用方差比率法、χ2检验,联结系数(AC)、点相关系数(PCC)、成对物种间的匹配系数(PC、DI、OI)等方法,分析了延安市城区斑块化湿地秋季主要昆虫种间联结。结果表明:秋季主要昆虫群落总体关联性为显著负联结(VR=0.552<1),χ2检验结果无极显著种对,3对为显著相关,整体呈现出独立和随机分布格局。210个种对中,|AC|>0.6的种对有87个,|PCC|≥0.3的种对有61个,PC≥0.3的种对有27个,DI≥0.3的种对有72个,OI≥0.3的种对有75个。其中与揺蚊相关的89个种对中,χ2检验结果仅有2对为显著联结,AC与PCC 指数都显示物种间联结度较弱,PC、DI、OI指数多集中于区间0≤PC<0.3,表明揺蚊与同期生存的其他物种间无显著或较强的种间联结关系。

关键词: 秋季昆虫, 斑块化湿地, 种间联结

Abstract: This paper researched the cause for multiplication of Chironomidae in Yan′he watershed by analysis of the interspecific association between the major insect species in patchiness wetlands of Yan′an based on the use of 2×2 contingency table, a series of parameters including variance ratio analysis, χ2-test, association coefficient(AC), Person′s correlation(PCC),and matching coefficient between pairs of species. The result showed that the variance ratio analysis of major insect species in autumn was significantly negatively correlated(VR=0.552<1), χ2-test results showed no extremly significant correlation, 3 pairs were significantly correlated, interspecific association tended to independent and random distribution overall. In the 210 species pair, there were 87 species pairs with |AC|>0.6, 61 species with |PCC|≥0.3, 27 species with PC≥0.3, 72 species with DI≥0.3, and 75 species with OI≥0.3. There was significantly interspecific association for 2 species pairs, among 89 species pairs which were related to Chironomidae, AC index and PCC index showed that the interconnection between species was weak, PC, and DI and OI indexes were concentrated in district(0≤PC<0.3). The result showed that there was no significant or strong interspecific associations observed between Chironomidae and other species in same period.

Key words: insects in autumn, patchiness wetlands, interspecific association

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